diff --git a/birdnet-pi/Dockerfile b/birdnet-pi/Dockerfile
index c1749aec6..a208afbd6 100644
--- a/birdnet-pi/Dockerfile
+++ b/birdnet-pi/Dockerfile
@@ -26,7 +26,8 @@ ENV DEBIAN_FRONTEND="noninteractive" \
     HOME="/home/pi" \
     XDG_RUNTIME_DIR="/run/user/1000" \
     PYTHON_VIRTUAL_ENV="/home/pi/BirdNET-Pi/birdnet/bin/python3" \
-    my_dir=/home/pi/BirdNET-Pi/scripts
+    my_dir=/home/pi/BirdNET-Pi/scripts \
+    MPLCONFIGDIR="/tmp/.cache/matplotlib"
 
 # Global LSIO modifications
 ADD "https://raw.githubusercontent.com/alexbelgium/hassio-addons/master/.templates/ha_lsio.sh" "/ha_lsio.sh"